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Finding the Fourth Proportional to 455,548.80, 683,323.20 and 202,828.80

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Solution

The fourth proportional to 455,548.80, 683,323.20 and 202,828.80 is: 304,243.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,548.80 : 683,323.20 = 202,828.80 : x
  2. Step 2: Convert to fraction form
    455,548.80/683,323.20 = 202,828.80/x
  3. Step 3: Cross multiply
    455,548.80x = 683,323.20 × 202,828.80
  4. Step 4: Simplify right side
    455,548.80x = 138,597,624,668.16
  5. Step 5: Solve for x
    x = 138,597,624,668.16/455,548.80
  6. Step 6: Final answer
    x = 304,243.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.